/*
 * Copyright (C) 2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export default class Preconditions {
  public static checkNotNull<T>(reference: T, errorMessage?: string): T {
    if (reference == null || reference == undefined) {
      if (errorMessage) {
        throw new Error(errorMessage);
      } else {
        throw new Error(`${reference} is null`);
      }
    }
    return reference;
  }

  public static checkAllNotNull(...references: Array<object | string | null>): void {
    references.forEach((value: object | string | null, index: number, array: Array<object | string | null>) => {
      if (value == null || value == undefined) {
        throw new Error('arg in params is null');
      }
    })
  }


  static checkArgument(expression: boolean, errorMessage?: string): void {
    if (!expression) {
      if (errorMessage) {
        throw new Error(errorMessage);
      } else {
        throw new Error('Illegal Argument');
      }

    }
  }
}